Japan 5G eSIM Plans

What is a Japan eSIM, and how does it work with Roamight?
A Japan eSIM from Roamight is a digital SIM card that allows you to connect to mobile networks in Japan without needing a physical SIM card. With Roamight's eSIM, you can instantly download and activate the eSIM on your compatible device by simply scanning the provided QR code. This ensures you enjoy seamless connectivity, avoid high roaming charges, and choose flexible data plans tailored to your travel needs in Japan.

Using an eSIM for data on vacation? Great! You're going to love staying connected without roaming charges. When should I set up my eSIM? Since you'll need a solid Wi-Fi (or data) connection to complete the eSIM installation process, we recommend installing your eSIM on your device 1-2 days prior to leaving on your trip. This way, you can ensure it gets installed properly, without any connection glitches.

Only unlocked phones are compatible with eSIMs. You should make sure that your phone is unlocked before buying an eSIM from the Roamight store.

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Our eSIM plans do not include a local phone number, but don't worry!

After activating a Roamight eSIM, you can continue using your phone number to send and receive calls and text messages (SMS). Your new eSIM plan will be used for data only, saving you expensive roaming fees.

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VoIP Calling and Texting

You can make and receive calls using your regular phone number if your carrier supports Wi-Fi Calling. If this feature is enabled on your device, your phone will connect to your home carrier's network over the internet using the eSIM data connection. (VoIP).

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If you have a Primary SIM, roaming on that should be "OFF" while you're using Roamight eSIM.

HOW TO TURN OFF?

Yes! After activating a Roamight Mobile eSIM, you can continue using your phone number to send and receive calls and text messages (SMS).

Your new eSIM plan will be used for data only, saving you expensive roaming fees.

Ensure that you are scanning the correct QR code provided by Roamight. If the issue persists, try manually entering the eSIM details or contact Roamight support for assistance.

This error indicates that your device may not be eSIM compatible. Verify that your smartphone supports eSIM technology and check Roamight’s compatibility list. If compatible, ensure your device has the latest software updates.

Ensure that your device is connected to the internet during the activation process. Restart your device and try activating the eSIM again. If the problem persists, contact Roamight support for further assistance.

This error means the eSIM has already been activated on another device. If you believe this is an error, contact Roamight support to reset your eSIM and enable activation on your current device.

Check if the eSIM data plan has been properly assigned to your account. Ensure your purchase was completed successfully and contact Roamight support if the data plan is missing or incorrect.

Make sure your device’s data roaming is turned on. Restart your device and try reconnecting to the network. If the issue persists, check if there are network outages in your area or contact Roamight support for assistance.

This error usually occurs due to poor internet connection. Ensure you have a stable internet connection and sufficient storage space on your device. Retry downloading the eSIM profile and contact support if the issue continues.

Ensure that your device is not in airplane mode and has a stable internet connection. Restart your device and attempt the eSIM profile installation again. Contact Roamight support if the error persists.

This indicates that your eSIM has been deactivated, possibly due to a plan expiration or manual deactivation. Contact Roamight support to reactivate your eSIM or to purchase a new plan.

Restart your device and try the activation or setup process again. If the error persists, note down the error details and contact Roamight support for a more detailed diagnosis and solution.